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Öğe Aggressive angiomyxoma of the female pelvis and the labium(Wiley-Blackwell, 2003) Yalinkaya, A; Askar, I; Bayhan, G; Kilinc, N; Yayla, M[Abstract Not Available]Öğe Cutaneous tuberculosis on the nasal dorsum(Lippincott Williams & Wilkins, 2001) Alic, B; Askar, I[Abstract Not Available]Öğe Double auricle?(Lippincott Williams & Wilkins, 2001) Askar, I; Gurlek, A; Sevin, K[Abstract Not Available]Öğe Double reverse V-Y-plasty in postburn scar contractures: a new modification of V-Y-plasty(Elsevier Sci Ltd, 2003) Askar, ISeveral techniques have been defined to use in surgical treatment of postburn scar contractures. However, distal flap necrosis is frequently seen since most of these techniques require random-pattern flaps and there is often poor vascular supply to scar tissue. In the Z-plasty, V-Y-plasty and their analogues, excess tissue requires excision of the dog-ear. A new modification of V-Y-plasty, called double reverse V-Y-plasty. is discussed. Nineteen postburn scar contractures were successfully treated with double reverse V-Y-plasty. The postoperative results represent the versatility of this technique in the surgical treatment of postburn scar contractures, especially neck and extremities. There was no distal flap necrosis. Double reverse V-Y-plasty is effective and alternative to the current techniques in Surgical treatment of every kind of postburn scar contractures with one or more contracture lines. It does not need any surgical knack. Advantages: (i) double reverse V-Y-plasty is safely useful, when skin tension across the contracture line is too great to use any local flaps; (ii) when superficial scarring is localized in the contracture site, it is superior to other local flaps because of rich vascularity and mobility (iii) double reverse V-Y-plasty is advised to the inexperienced surgeon, since it is easy to use; (iv) color and texture matches are cosmetically acceptable, and the resultant contracture is as much as with other techniques; (v) there is no necessity to use excision of the do-ear (vi) it can be utilized under local anesthesia almost in all cases; and (vii) it requires a shorter period of operation, and hospitalization. (C) 2003 Elsevier Ltd and ISBI. All rights reserved.Öğe Effects of heparin fractions on the prevention of skin necrosis resulting from adriamycin extravasation: An experimental study(Lippincott Williams & Wilkins, 2002) Askar, I; Erbas, MK; Gurlek, AExtravasation of a chemotherapeutic agent is one of the most frequent complications in cancer patients. Full-thickness skin necrosis often occurs after extravasation. Alternative approaches to treatment are local wound care, elevation, and hypothermia. It was shown that heparin prevents skin necrosis. In this experimental study, the effects of heparin fractions on the prevention of skin necrosis were compared by applying an extravasation model of Adriamycin in rats. Forty Sprague-Dawley male rats weighing 250 to 300 g were used. A total of 0.3 ml doxorubicin hydrochloride was administered subcutaneously to all rats. Ten minutes later, in the control group (group 1), 1 ml normal saline was administered subcutaneously. In the first experimental group (group 11), 100 U per day heparin sodium was administered in a volume of 1 ml subcutaneously. In the second experimental group (group III), nadroparin calcium (5 anti-Xa U per kilogram per day) was administered. In the third and last experimental group (group IV), dalteparin sodium (5 anti-Xa U per kilogram per day) was administered. All drugs were administered for 2 weeks. Necrotic areas were measured 4 weeks later. Statistical analysis was performed using the Kruskal-Wallis analysis of variance and the Mann-Whitney U test. Heparin fractions caused a decreased ulcer rate and size than controls (p < 0.05). There was no superiority among heparin fractions. The authors think that low-molecular weight heparins are preferred, considering the higher risk of bleeding with unfractionated heparin.Öğe Exposure of high-density porous polyethylene (Medpor®) used for contour restoration and treatment(Churchill Livingstone, 2000) Sevin, K; Askar, I; Saray, A; Yormuk, EPorous high-density polyethylene (Medpor(R)) is a biocompatible large-pore, high-density polyethylene implant. It is well tolerated by surrounding tissue, and its porous structure is rapidly infiltrated by host tissue. It is a highly stable and somewhat flexible porous alloplast that has rapid tissue ingrowth into its pores. However, when the implant is placed under a thin cover of skin, there is a risk of exposure, A total of 52 Medpor implants sere placed in 31 patients over a four-year period. The implants were used for the chin, malar area, nasal reconstruction, ear reconstruction, orbital reconstruction, and the correction of mandibular contour deformities. Many of these implants were placed in areas considered problematic, such as those with thin or atrophic soft-tissue coverage and extensive scarring. There were nine complications, including three patients in whom the implant,vas exposed; these are presented here.Öğe The fate of neurotization techniques on reinnervation after denervation of the gastrocnemius muscle: An experimental study(Thieme Medical Publ Inc, 2001) Askar, I; Sabuncuoglu, BT; Yormuk, E; Saray, AIn nerve injuries, if it is not possible to reinnervate muscle by using neurorrhaphy and nerve grafting technique, reinnervation should be provided by the use of neuroization-directly implanting motor nerve into muscle. A comparative study of three techniques of neurotization is presented in rabbits. In this experimental study, a total of 40 white New Zealand rabbits were used and divided into four groups, each including 10 rabbits. In the first group (control-Group 1), only surgical exposure of the gastrocnemius muscle, main muscle nerve (tibial nerve), and peroneal nerve was done, without any injury to the nerves. In the second group (direct neurotization group-Group 2), the tibial nerve was transected, and the peroneal nerve, which had already been divided into fascicles, was implanted into the lateral head of the gastrocnemius muscle aneural zone. In the third group (dual neurotization group-Group 3), the tibial nerve which had been transected and re-anastomosed, and the peroneal nerve were implanted into the lateral head of the gastrocnemius muscle. In the last experimental group (hyperneurotization group-Group 4), fascicles of the peroneal nerve were implanted into the lateral head of the gastrocnemius, preserving the tibial nerve. Six months later, changes in the histologic pattern and the functional recovery of the gastrocnemius muscle were investigated. It was found that functional recovery was achieved in all neurotization groups. Groups with the tibial nerve transected had less muscular weights than those of groups with the tibial nerve intact. EMG recordings showed that polyphasic and late potentials were frequently seen in groups with the tibial nerve transected. Degeneration and regeneration of myofibrils was observed in such groups as well. New motor end-plates, including vesicles, were formed in a scattered manner in all neurotization groups. As a result, the authors conclude that direct and dual neurotization techniques are useful in peripheral nerve injuries, if it is not possible to reinnervate muscle by using neurorraphy and nerve grafting, and that there is no suggested superiority among these techniques.Öğe Lateral facial clefts (macrostomia)(Lippincott Williams & Wilkins, 2001) Askar, I; Gurlek, A; Sevin, K[Abstract Not Available]Öğe Linear verrucous epidermal nevus with cutaneous horn(Wiley, 2003) Askar, I; Aytekin, S[Abstract Not Available]Öğe Multiple giant disseminated pyogenic granuloma in a burn lesion(Lippincott Williams & Wilkins, 2006) Bozkurt, M; Külahçi, Y; Zor, F; Askar, IThis case describes a 2-year-old boy who developed multiple giant pyogenic granulomas on his left upper extremity secondary to a burn injury caused by boiling milk. Here, we present multiple pyogenic granulomas in a burn patient and discuss the possible etiologies of the entity. The pyogenic granulomas were excised and wounds closed with sutures (primary repair) (primary closure). No pyogenic granulomas have recurred after 11 months of follow-up. Pyogenic granuloma with multiple dissemination in a burn scar is an extremely rare occurrence, and there have been no reports of pyogenic granulomas caused by flame and other type of scalding burns such as hot water and oil. The case presented here was a burn injury caused by hot milk. The burn etiology, not the burn injury itself, is important because all similar cases have the same etiology. We thought that this may not be a coincidence and that milk proteins or other components of the milk might cause the development of pyogenic granuloma.Öğe A transverse rectus abdominis myocutaneous (TRAM) flap for reconstruction of a large deformity in the buttock(Taylor & Francis As, 2005) Gürlek, A; Demir, CY; Askar, I; Aydogan, H; Alaybeyoglu, N; Coban, KA rectus abdominis myocutaneous flap has been used to repair the abdominal wall, chest wall, sternum, breast, and groin. We describe a patient in whom a large deformity in the buttock caused by a road crash was repaired with a transverse rectus abdominis myocutaneous (TRAM) flap. Distally-based TRAM flaps provide a good and reliable way of reconstructing the buttock. Its advantages are a long arc of rotation and well-vascularised bulky tissue that serve as a partition and promote quick healing of the defect. However, the flap is not the first choice for traumatic and infected wounds where fatty tissue is not desired.Öğe Use of radial forearm free flap with palmaris longus tendon in reconstruction of total maxillectomy with sparing of orbital contents(Lippincott Williams & Wilkins, 2003) Askar, I; Oktay, MF; Kilinc, NNasal paragangliomas are extremely rare. The most adequate treatment is total excision. After surgical excision requiring total maxillectomy, there has been no ideal technique for reconstruction. A 47-year-old man was admitted to our clinic because of recurrent epistaxis, which lasted for 2 months. He was also suffering from nasal airway obstruction. The physical examination revealed a mass originating from the medial aspect of the middle turbinate of the right nasal cavity. It invaded the anterior maxillary wall and hard and soft palate. Endoscopic examination showed that the mass pushed the nasal septum to the left side and protruded into the nasopharynx. The mass was fleshy and had a rich capillary network. Conventional paranasal sinus radiographs were normal. Computerized tomography of the skull showed the mass protruding into the nasopharynx. A total maxillectomy was performed. Histopathological evaluation showed neoplastic tissue consisting of round, oval, or slightly elongated cells, altogether of a rather monomorphous appearance, tending to arrange themselves in clusters adjacent to or around capillary blood vessels. The blood vessels were numerous and branched. Reticulum staining showed a typical Zellballen arrangement of the neoplastic cells to provide a firmer basis for the diagnosis of paraganglioma. To reconstruct the total maxillectomy defect, a radial forearm free flap with the palmaris longus tendon was elevated to inlay the nasal cavity and the oral cavity and to suspend the ocular globe. The flap was placed into the defect, and the palmaris longus tendon was medially and laterally anchored to the periosteum of the frontal bone to suspend the ocular globe in the orbital cavity. One part of the skin island was used to close the defect of the nasal mucosal cavity, and the other part was used to repair the oral mucosal defect of the palate. Consequently, speech was considered near normal; the patient was able to eat an unrestricted diet and to retain both solid and liquid food inside the oral cavity without drooling, and there was no diplopia or enophthalmos. Six months later, porous polyethylene was inserted and fixed to the zygomatic bone with a miniplate and miniscrews to restore malar contour. No further procedure was believed to be necessary later on. Two years later, a satisfactory and functional esthetic result was obtained, providing an acceptable suspension of the ocular globe and filling of the total maxillectomy defect. We believe that a total maxillectomy is indicated if it is needed in nasal paragangliomas and that microsurgical repair with the composite radial forearm-palmaris longus free flap has several advantages: 1) it can offer en bloc reconstruction of the entire defect after a total maxillectomy in terms of good function and cosmesis; 2) it can repair mucosal defects; and 3) it can anchor and suspend the ocular globe in its original anatomical location, protecting against gravity through the sling effect of the palmaris longus tendon. The composite radial forearm-palmaris longus free flap has not been described previously for suspension of the ocular globe.Öğe Use of the vastus lateralis muscle flap with a grooving procedure in the surgical treatment of chronic osteomyelitis of the femur(Lippincott Williams & Wilkins, 2004) Necmioglu, S; Askar, I; Lök, V; Subasi, MSevere femoral fractures may be associated with devascularization of cortical bone, soft-tissue loss, and significant morbidity. After surgical treatment of these femoral fractures, chronic infection may ensue and requires additional reconstructive procedures. Local muscle flap coverage is used to treat chronic osteomyelitis. A new procedure-the vastus lateralis muscle flap with grooving of the femoral shaft-was used for the treatment of chronic osteomyelitis of the femoral shaft. The authors present 6 patients with chronic osteomyelitis of the femur who were treated with a vastus lateralis muscle flap. Five of the patients were male and the other was female. The average age of the patients was 33.8 years (range, 17-54 years). All patients experienced infection during the early postoperative period. Drainage of abscess, debridement, sequestrectomy repair of fistula, and mini fenestration were performed at least 3 times, and antibiotics were administered several times. During the operations, tissue samples were evaluated for bacterial cultivation. Staphylococcus aureus was seen in 4 patients, S. epidermidis in 1 patient, and Pseudomonas aeruginosa in the remaining patient. A vastus lateralis muscle flap with grooving of the infected femoral shaft is presented. The authors have not encountered a recurrence of infection during a minimum 3.9 years of follow-up. They think this technique is an alternative to the current techniques for the surgical treatment of chronic osteomyelitis of the femur.
